ddf.catalog.transformer.input.pptx

Class PptxInputTransformer

java.lang.Object

ddf.catalog.transformer.input.pptx.PptxInputTransformer

All Implemented Interfaces:

InputTransformer

public class PptxInputTransformer
extends Object
implements InputTransformer

This is a decorator class that adds a thumbnail for PPTX files. It relies on an injected InputTransformer to extract the metadata, and then it generates a thumbnail image with Apache POI.

Constructor Summary

Constructors

Constructor and Description
PptxInputTransformer(InputTransformer inputTransformer) The inputTransformer parameter will be used to generate the basic metadata.

Method Summary

Modifier and Type	Method and Description
Metacard	transform(InputStream input) Transforms the input into a Metacard.
Metacard	transform(InputStream input, String id) Transforms the input into a Metacard and associates the id with the Metacard on creation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PptxInputTransformer

public PptxInputTransformer(InputTransformer inputTransformer)

The inputTransformer parameter will be used to generate the basic metadata. If the parameter is null, then a NullPointerException will be thrown.

Parameters:

inputTransformer - must be non-null

Throws:

NullPointerException

Method Detail

transform

public Metacard transform(InputStream input)
                   throws IOException,
                          CatalogTransformerException

Description copied from interface: InputTransformer

Transforms the input into a Metacard.

Specified by:

transform in interface InputTransformer

Parameters:

input - the binary InputStream to transform

Returns:

the generated Metacard

Throws:

IOException - if an I/O exception occurs when reading the InputStream

CatalogTransformerException - if an error occurs during transformation

transform

public Metacard transform(InputStream input,
                          String id)
                   throws IOException,
                          CatalogTransformerException

Description copied from interface: InputTransformer

Transforms the input into a Metacard and associates the id with the Metacard on creation.

Specified by:

transform in interface InputTransformer

Parameters:

input - the binary InputStream to transform

id - the attribute value for the Metacard.ID attribute that should be set in the generated Metacard

Returns:

the generated Metacard

Throws:

IOException - if an I/O exception occurs when reading the InputStream

CatalogTransformerException - if an error occurs during transformation